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<head><meta charset="utf-8"><title>weekly meeting 2019.04.23 · wg-async-foundations · Zulip Chat Archive</title></head>
<h2>Stream: <a href="https://rust-lang.github.io/zulip_archive/stream/187312-wg-async-foundations/index.html">wg-async-foundations</a></h2>
<h3>Topic: <a href="https://rust-lang.github.io/zulip_archive/stream/187312-wg-async-foundations/topic/weekly.20meeting.202019.2E04.2E23.html">weekly meeting 2019.04.23</a></h3>

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<a name="164007947"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/187312-wg-async-foundations/topic/weekly%20meeting%202019.04.23/near/164007947" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> Taylor Cramer <a href="https://rust-lang.github.io/zulip_archive/stream/187312-wg-async-foundations/topic/weekly.20meeting.202019.2E04.2E23.html#164007947">(Apr 23 2019 at 16:57)</a>:</h4>
<p>o/ <span class="user-group-mention" data-user-group-id="1172">@WG-async-await</span></p>



<a name="164007976"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/187312-wg-async-foundations/topic/weekly%20meeting%202019.04.23/near/164007976" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> tmandry <a href="https://rust-lang.github.io/zulip_archive/stream/187312-wg-async-foundations/topic/weekly.20meeting.202019.2E04.2E23.html#164007976">(Apr 23 2019 at 16:57)</a>:</h4>
<p>I won't be around for all of the normal meeting time today. Status on generator optimizations is:<br>
<a href="https://github.com/rust-lang/rust/issues/59897" target="_blank" title="https://github.com/rust-lang/rust/issues/59897">#59897</a> is cleaned up waiting for review (and a test fix)<br>
I also opened <a href="https://github.com/rust-lang/rust/issues/60187" target="_blank" title="https://github.com/rust-lang/rust/issues/60187">#60187</a> which is the actual optimization so we can test the performance</p>



<a name="164008060"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/187312-wg-async-foundations/topic/weekly%20meeting%202019.04.23/near/164008060" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> Taylor Cramer <a href="https://rust-lang.github.io/zulip_archive/stream/187312-wg-async-foundations/topic/weekly.20meeting.202019.2E04.2E23.html#164008060">(Apr 23 2019 at 16:58)</a>:</h4>
<p>There's a new issue that was just opened recently: <a href="https://github.com/rust-lang/rust/issues/60203" target="_blank" title="https://github.com/rust-lang/rust/issues/60203">https://github.com/rust-lang/rust/issues/60203</a></p>



<a name="164008121"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/187312-wg-async-foundations/topic/weekly%20meeting%202019.04.23/near/164008121" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> Taylor Cramer <a href="https://rust-lang.github.io/zulip_archive/stream/187312-wg-async-foundations/topic/weekly.20meeting.202019.2E04.2E23.html#164008121">(Apr 23 2019 at 16:59)</a>:</h4>
<p>I believe this is due to how the shared code with elision in impl headers doesn't allow elided lifetime parameters that are non-explicit</p>



<a name="164008129"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/187312-wg-async-foundations/topic/weekly%20meeting%202019.04.23/near/164008129" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> Taylor Cramer <a href="https://rust-lang.github.io/zulip_archive/stream/187312-wg-async-foundations/topic/weekly.20meeting.202019.2E04.2E23.html#164008129">(Apr 23 2019 at 16:59)</a>:</h4>
<p>(in non-reference types)</p>



<a name="164008230"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/187312-wg-async-foundations/topic/weekly%20meeting%202019.04.23/near/164008230" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> Taylor Cramer <a href="https://rust-lang.github.io/zulip_archive/stream/187312-wg-async-foundations/topic/weekly.20meeting.202019.2E04.2E23.html#164008230">(Apr 23 2019 at 17:00)</a>:</h4>
<p><span class="user-mention" data-user-id="116009">@nikomatsakis</span> I don't believe there's an obvious fix for this that doesn't involve moving all of that code into a different part of the compiler</p>



<a name="164008243"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/187312-wg-async-foundations/topic/weekly%20meeting%202019.04.23/near/164008243" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> Taylor Cramer <a href="https://rust-lang.github.io/zulip_archive/stream/187312-wg-async-foundations/topic/weekly.20meeting.202019.2E04.2E23.html#164008243">(Apr 23 2019 at 17:00)</a>:</h4>
<p>but we might be able to detect and warn about this case somewhere-- WDYT?</p>



<a name="164008256"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/187312-wg-async-foundations/topic/weekly%20meeting%202019.04.23/near/164008256" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> Taylor Cramer <a href="https://rust-lang.github.io/zulip_archive/stream/187312-wg-async-foundations/topic/weekly.20meeting.202019.2E04.2E23.html#164008256">(Apr 23 2019 at 17:00)</a>:</h4>
<p>I'll label as blocking for now.</p>



<a name="164008267"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/187312-wg-async-foundations/topic/weekly%20meeting%202019.04.23/near/164008267" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> Taylor Cramer <a href="https://rust-lang.github.io/zulip_archive/stream/187312-wg-async-foundations/topic/weekly.20meeting.202019.2E04.2E23.html#164008267">(Apr 23 2019 at 17:00)</a>:</h4>
<p>(unless anyone objects)</p>



<a name="164008320"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/187312-wg-async-foundations/topic/weekly%20meeting%202019.04.23/near/164008320" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> nikomatsakis <a href="https://rust-lang.github.io/zulip_archive/stream/187312-wg-async-foundations/topic/weekly.20meeting.202019.2E04.2E23.html#164008320">(Apr 23 2019 at 17:01)</a>:</h4>
<p>ok, let me look for a second</p>



<a name="164008332"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/187312-wg-async-foundations/topic/weekly%20meeting%202019.04.23/near/164008332" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> Taylor Cramer <a href="https://rust-lang.github.io/zulip_archive/stream/187312-wg-async-foundations/topic/weekly.20meeting.202019.2E04.2E23.html#164008332">(Apr 23 2019 at 17:02)</a>:</h4>
<p>I also finished up work on the syntax implementation, which fixes several of the other outstanding issues.</p>



<a name="164008379"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/187312-wg-async-foundations/topic/weekly%20meeting%202019.04.23/near/164008379" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> Taylor Cramer <a href="https://rust-lang.github.io/zulip_archive/stream/187312-wg-async-foundations/topic/weekly.20meeting.202019.2E04.2E23.html#164008379">(Apr 23 2019 at 17:02)</a>:</h4>
<p>and I left a comment to that effect on <a href="https://github.com/rust-lang/rust/issues/60016" target="_blank" title="https://github.com/rust-lang/rust/issues/60016">https://github.com/rust-lang/rust/issues/60016</a></p>



<a name="164008397"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/187312-wg-async-foundations/topic/weekly%20meeting%202019.04.23/near/164008397" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> nikomatsakis <a href="https://rust-lang.github.io/zulip_archive/stream/187312-wg-async-foundations/topic/weekly.20meeting.202019.2E04.2E23.html#164008397">(Apr 23 2019 at 17:02)</a>:</h4>
<blockquote>
<p>I'll label as blocking for now.</p>
</blockquote>
<p>one simple option is to make "hidden lifetimes" mandatory in async fns :)</p>



<a name="164008406"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/187312-wg-async-foundations/topic/weekly%20meeting%202019.04.23/near/164008406" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> nikomatsakis <a href="https://rust-lang.github.io/zulip_archive/stream/187312-wg-async-foundations/topic/weekly.20meeting.202019.2E04.2E23.html#164008406">(Apr 23 2019 at 17:02)</a>:</h4>
<p>that said, I feel like this level of desugaring happens at HIR lowering time</p>



<a name="164008418"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/187312-wg-async-foundations/topic/weekly%20meeting%202019.04.23/near/164008418" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> Taylor Cramer <a href="https://rust-lang.github.io/zulip_archive/stream/187312-wg-async-foundations/topic/weekly.20meeting.202019.2E04.2E23.html#164008418">(Apr 23 2019 at 17:02)</a>:</h4>
<p><span class="user-mention" data-user-id="116009">@nikomatsakis</span> oh? how would we know by HIR which external types contain lifetimes and which don't?</p>



<a name="164008421"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/187312-wg-async-foundations/topic/weekly%20meeting%202019.04.23/near/164008421" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> nikomatsakis <a href="https://rust-lang.github.io/zulip_archive/stream/187312-wg-async-foundations/topic/weekly.20meeting.202019.2E04.2E23.html#164008421">(Apr 23 2019 at 17:03)</a>:</h4>
<blockquote>
<p>I also finished up work on the syntax implementation, which fixes several of the other outstanding issues.</p>
</blockquote>
<p>I was going to mention this -- well, let me read your comment first</p>



<a name="164008438"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/187312-wg-async-foundations/topic/weekly%20meeting%202019.04.23/near/164008438" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> nikomatsakis <a href="https://rust-lang.github.io/zulip_archive/stream/187312-wg-async-foundations/topic/weekly.20meeting.202019.2E04.2E23.html#164008438">(Apr 23 2019 at 17:03)</a>:</h4>
<blockquote>
<p>oh? how would we know by HIR which external types contain lifetimes and which don't?</p>
</blockquote>
<p>we've resolved names already</p>



<a name="164008441"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/187312-wg-async-foundations/topic/weekly%20meeting%202019.04.23/near/164008441" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> Taylor Cramer <a href="https://rust-lang.github.io/zulip_archive/stream/187312-wg-async-foundations/topic/weekly.20meeting.202019.2E04.2E23.html#164008441">(Apr 23 2019 at 17:03)</a>:</h4>
<p>my comment doesn't have a lot more info</p>



<a name="164008451"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/187312-wg-async-foundations/topic/weekly%20meeting%202019.04.23/near/164008451" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> nikomatsakis <a href="https://rust-lang.github.io/zulip_archive/stream/187312-wg-async-foundations/topic/weekly.20meeting.202019.2E04.2E23.html#164008451">(Apr 23 2019 at 17:03)</a>:</h4>
<p>indeed, it does not :)</p>



<a name="164008523"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/187312-wg-async-foundations/topic/weekly%20meeting%202019.04.23/near/164008523" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> Taylor Cramer <a href="https://rust-lang.github.io/zulip_archive/stream/187312-wg-async-foundations/topic/weekly.20meeting.202019.2E04.2E23.html#164008523">(Apr 23 2019 at 17:04)</a>:</h4>
<p>Specifically, <a href="https://github.com/rust-lang/rust/issues/51719" target="_blank" title="https://github.com/rust-lang/rust/issues/51719">https://github.com/rust-lang/rust/issues/51719</a> and <a href="https://github.com/rust-lang/rust/issues/51751" target="_blank" title="https://github.com/rust-lang/rust/issues/51751">https://github.com/rust-lang/rust/issues/51751</a> are fixed</p>



<a name="164008560"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/187312-wg-async-foundations/topic/weekly%20meeting%202019.04.23/near/164008560" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> Taylor Cramer <a href="https://rust-lang.github.io/zulip_archive/stream/187312-wg-async-foundations/topic/weekly.20meeting.202019.2E04.2E23.html#164008560">(Apr 23 2019 at 17:04)</a>:</h4>
<p>I did hit one funny issue which I asked about in the help channel here</p>



<a name="164008566"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/187312-wg-async-foundations/topic/weekly%20meeting%202019.04.23/near/164008566" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> nikomatsakis <a href="https://rust-lang.github.io/zulip_archive/stream/187312-wg-async-foundations/topic/weekly.20meeting.202019.2E04.2E23.html#164008566">(Apr 23 2019 at 17:04)</a>:</h4>
<p>So, I was going to say that I think opening a PR seems "ok" to me. I think you said you chose <code>foo.await</code> as the syntax. If I were you, I'd open a PR with some text like</p>
<hr>
<p>Implements built-in syntax for await </p>
<p>This PR implements <code>foo.await</code>. This is a "placeholder" choice and should not be interpreted as "blessing" that syntax, as there has been no final decision on the syntax to use. However, we had to do <em>something</em> and I chose to use the syntax I personally prefer (implementor's prerogative).</p>



<a name="164008613"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/187312-wg-async-foundations/topic/weekly%20meeting%202019.04.23/near/164008613" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> Taylor Cramer <a href="https://rust-lang.github.io/zulip_archive/stream/187312-wg-async-foundations/topic/weekly.20meeting.202019.2E04.2E23.html#164008613">(Apr 23 2019 at 17:05)</a>:</h4>
<p><span class="user-mention" data-user-id="116009">@nikomatsakis</span> I'd prefer not to land anything that isn't the final syntax</p>



<a name="164008630"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/187312-wg-async-foundations/topic/weekly%20meeting%202019.04.23/near/164008630" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> Taylor Cramer <a href="https://rust-lang.github.io/zulip_archive/stream/187312-wg-async-foundations/topic/weekly.20meeting.202019.2E04.2E23.html#164008630">(Apr 23 2019 at 17:05)</a>:</h4>
<p>as it's pretty huge churn for me, futures-rs, and everyone I work with</p>



<a name="164008638"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/187312-wg-async-foundations/topic/weekly%20meeting%202019.04.23/near/164008638" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> nikomatsakis <a href="https://rust-lang.github.io/zulip_archive/stream/187312-wg-async-foundations/topic/weekly.20meeting.202019.2E04.2E23.html#164008638">(Apr 23 2019 at 17:05)</a>:</h4>
<p>Why? Oh, does it also remove the macro?</p>



<a name="164008641"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/187312-wg-async-foundations/topic/weekly%20meeting%202019.04.23/near/164008641" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> Taylor Cramer <a href="https://rust-lang.github.io/zulip_archive/stream/187312-wg-async-foundations/topic/weekly.20meeting.202019.2E04.2E23.html#164008641">(Apr 23 2019 at 17:05)</a>:</h4>
<p>Yes.</p>



<a name="164008646"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/187312-wg-async-foundations/topic/weekly%20meeting%202019.04.23/near/164008646" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> nikomatsakis <a href="https://rust-lang.github.io/zulip_archive/stream/187312-wg-async-foundations/topic/weekly.20meeting.202019.2E04.2E23.html#164008646">(Apr 23 2019 at 17:06)</a>:</h4>
<p>Ah. Why do that?</p>



<a name="164008701"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/187312-wg-async-foundations/topic/weekly%20meeting%202019.04.23/near/164008701" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> nikomatsakis <a href="https://rust-lang.github.io/zulip_archive/stream/187312-wg-async-foundations/topic/weekly.20meeting.202019.2E04.2E23.html#164008701">(Apr 23 2019 at 17:06)</a>:</h4>
<p>I'd have expected the macro to lower to the syntax</p>



<a name="164008731"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/187312-wg-async-foundations/topic/weekly%20meeting%202019.04.23/near/164008731" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> nikomatsakis <a href="https://rust-lang.github.io/zulip_archive/stream/187312-wg-async-foundations/topic/weekly.20meeting.202019.2E04.2E23.html#164008731">(Apr 23 2019 at 17:06)</a>:</h4>
<p>Like, that just seems like a better transition plan period</p>



<a name="164008733"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/187312-wg-async-foundations/topic/weekly%20meeting%202019.04.23/near/164008733" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> Taylor Cramer <a href="https://rust-lang.github.io/zulip_archive/stream/187312-wg-async-foundations/topic/weekly.20meeting.202019.2E04.2E23.html#164008733">(Apr 23 2019 at 17:06)</a>:</h4>
<p>Today we turn off "await" as a keyword</p>



<a name="164008741"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/187312-wg-async-foundations/topic/weekly%20meeting%202019.04.23/near/164008741" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> Taylor Cramer <a href="https://rust-lang.github.io/zulip_archive/stream/187312-wg-async-foundations/topic/weekly.20meeting.202019.2E04.2E23.html#164008741">(Apr 23 2019 at 17:06)</a>:</h4>
<p>when <code>async_await</code> is enabled</p>



<a name="164008750"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/187312-wg-async-foundations/topic/weekly%20meeting%202019.04.23/near/164008750" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> nikomatsakis <a href="https://rust-lang.github.io/zulip_archive/stream/187312-wg-async-foundations/topic/weekly.20meeting.202019.2E04.2E23.html#164008750">(Apr 23 2019 at 17:06)</a>:</h4>
<p>OK, but we can special-case <code>await</code> <code>!</code></p>



<a name="164008755"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/187312-wg-async-foundations/topic/weekly%20meeting%202019.04.23/near/164008755" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> nikomatsakis <a href="https://rust-lang.github.io/zulip_archive/stream/187312-wg-async-foundations/topic/weekly.20meeting.202019.2E04.2E23.html#164008755">(Apr 23 2019 at 17:06)</a>:</h4>
<p>i.e., the keyword followed by a bang</p>



<a name="164008774"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/187312-wg-async-foundations/topic/weekly%20meeting%202019.04.23/near/164008774" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> nikomatsakis <a href="https://rust-lang.github.io/zulip_archive/stream/187312-wg-async-foundations/topic/weekly.20meeting.202019.2E04.2E23.html#164008774">(Apr 23 2019 at 17:07)</a>:</h4>
<p>but maybe that's too much work?</p>



<a name="164008784"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/187312-wg-async-foundations/topic/weekly%20meeting%202019.04.23/near/164008784" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> Taylor Cramer <a href="https://rust-lang.github.io/zulip_archive/stream/187312-wg-async-foundations/topic/weekly.20meeting.202019.2E04.2E23.html#164008784">(Apr 23 2019 at 17:07)</a>:</h4>
<p>Yeah, we can have a special case in the parser for that</p>



<a name="164008788"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/187312-wg-async-foundations/topic/weekly%20meeting%202019.04.23/near/164008788" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> nikomatsakis <a href="https://rust-lang.github.io/zulip_archive/stream/187312-wg-async-foundations/topic/weekly.20meeting.202019.2E04.2E23.html#164008788">(Apr 23 2019 at 17:07)</a>:</h4>
<p>I feel like it'd be nice if people could move their code "bit by bit" rather than one huge PR</p>



<a name="164008795"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/187312-wg-async-foundations/topic/weekly%20meeting%202019.04.23/near/164008795" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> Taylor Cramer <a href="https://rust-lang.github.io/zulip_archive/stream/187312-wg-async-foundations/topic/weekly.20meeting.202019.2E04.2E23.html#164008795">(Apr 23 2019 at 17:07)</a>:</h4>
<p>not that much work, but I figured it wasn't something we wanted to do</p>



<a name="164008800"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/187312-wg-async-foundations/topic/weekly%20meeting%202019.04.23/near/164008800" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> Taylor Cramer <a href="https://rust-lang.github.io/zulip_archive/stream/187312-wg-async-foundations/topic/weekly.20meeting.202019.2E04.2E23.html#164008800">(Apr 23 2019 at 17:07)</a>:</h4>
<p>^^it would be nice</p>



<a name="164008813"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/187312-wg-async-foundations/topic/weekly%20meeting%202019.04.23/near/164008813" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> Taylor Cramer <a href="https://rust-lang.github.io/zulip_archive/stream/187312-wg-async-foundations/topic/weekly.20meeting.202019.2E04.2E23.html#164008813">(Apr 23 2019 at 17:07)</a>:</h4>
<p>I guess I'm used to that kind of churn around e.g. futures_api</p>



<a name="164008821"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/187312-wg-async-foundations/topic/weekly%20meeting%202019.04.23/near/164008821" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> Taylor Cramer <a href="https://rust-lang.github.io/zulip_archive/stream/187312-wg-async-foundations/topic/weekly.20meeting.202019.2E04.2E23.html#164008821">(Apr 23 2019 at 17:07)</a>:</h4>
<p>but certainly it would be more convenient another way</p>



<a name="164008823"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/187312-wg-async-foundations/topic/weekly%20meeting%202019.04.23/near/164008823" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> nikomatsakis <a href="https://rust-lang.github.io/zulip_archive/stream/187312-wg-async-foundations/topic/weekly.20meeting.202019.2E04.2E23.html#164008823">(Apr 23 2019 at 17:07)</a>:</h4>
<p>Up to you</p>



<a name="164008861"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/187312-wg-async-foundations/topic/weekly%20meeting%202019.04.23/near/164008861" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> nikomatsakis <a href="https://rust-lang.github.io/zulip_archive/stream/187312-wg-async-foundations/topic/weekly.20meeting.202019.2E04.2E23.html#164008861">(Apr 23 2019 at 17:08)</a>:</h4>
<p>but I agree we should not force people to migrate twice</p>



<a name="164008890"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/187312-wg-async-foundations/topic/weekly%20meeting%202019.04.23/near/164008890" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> Taylor Cramer <a href="https://rust-lang.github.io/zulip_archive/stream/187312-wg-async-foundations/topic/weekly.20meeting.202019.2E04.2E23.html#164008890">(Apr 23 2019 at 17:08)</a>:</h4>
<p>okay, I can give it a shot then</p>



<a name="164008892"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/187312-wg-async-foundations/topic/weekly%20meeting%202019.04.23/near/164008892" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> Taylor Cramer <a href="https://rust-lang.github.io/zulip_archive/stream/187312-wg-async-foundations/topic/weekly.20meeting.202019.2E04.2E23.html#164008892">(Apr 23 2019 at 17:08)</a>:</h4>
<p>right</p>



<a name="164008911"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/187312-wg-async-foundations/topic/weekly%20meeting%202019.04.23/near/164008911" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> Taylor Cramer <a href="https://rust-lang.github.io/zulip_archive/stream/187312-wg-async-foundations/topic/weekly.20meeting.202019.2E04.2E23.html#164008911">(Apr 23 2019 at 17:08)</a>:</h4>
<p>I kind of feel like it should be under a separate feature gate</p>



<a name="164008916"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/187312-wg-async-foundations/topic/weekly%20meeting%202019.04.23/near/164008916" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> Taylor Cramer <a href="https://rust-lang.github.io/zulip_archive/stream/187312-wg-async-foundations/topic/weekly.20meeting.202019.2E04.2E23.html#164008916">(Apr 23 2019 at 17:08)</a>:</h4>
<p>I'll play with it :)</p>



<a name="164008922"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/187312-wg-async-foundations/topic/weekly%20meeting%202019.04.23/near/164008922" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> nikomatsakis <a href="https://rust-lang.github.io/zulip_archive/stream/187312-wg-async-foundations/topic/weekly.20meeting.202019.2E04.2E23.html#164008922">(Apr 23 2019 at 17:08)</a>:</h4>
<p>yeah</p>



<a name="164008931"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/187312-wg-async-foundations/topic/weekly%20meeting%202019.04.23/near/164008931" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> nikomatsakis <a href="https://rust-lang.github.io/zulip_archive/stream/187312-wg-async-foundations/topic/weekly.20meeting.202019.2E04.2E23.html#164008931">(Apr 23 2019 at 17:08)</a>:</h4>
<p>that..probably makes sense</p>



<a name="164008953"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/187312-wg-async-foundations/topic/weekly%20meeting%202019.04.23/near/164008953" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> nikomatsakis <a href="https://rust-lang.github.io/zulip_archive/stream/187312-wg-async-foundations/topic/weekly.20meeting.202019.2E04.2E23.html#164008953">(Apr 23 2019 at 17:09)</a>:</h4>
<p>if it's easy to do, at least</p>



<a name="164008965"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/187312-wg-async-foundations/topic/weekly%20meeting%202019.04.23/near/164008965" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> Taylor Cramer <a href="https://rust-lang.github.io/zulip_archive/stream/187312-wg-async-foundations/topic/weekly.20meeting.202019.2E04.2E23.html#164008965">(Apr 23 2019 at 17:09)</a>:</h4>
<p>mhm</p>



<a name="164008970"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/187312-wg-async-foundations/topic/weekly%20meeting%202019.04.23/near/164008970" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> nikomatsakis <a href="https://rust-lang.github.io/zulip_archive/stream/187312-wg-async-foundations/topic/weekly.20meeting.202019.2E04.2E23.html#164008970">(Apr 23 2019 at 17:09)</a>:</h4>
<p>ok, so, I guess that you've not done anything on the regin solving, right?</p>



<a name="164008980"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/187312-wg-async-foundations/topic/weekly%20meeting%202019.04.23/near/164008980" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> Taylor Cramer <a href="https://rust-lang.github.io/zulip_archive/stream/187312-wg-async-foundations/topic/weekly.20meeting.202019.2E04.2E23.html#164008980">(Apr 23 2019 at 17:09)</a>:</h4>
<p>I have not</p>



<a name="164008981"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/187312-wg-async-foundations/topic/weekly%20meeting%202019.04.23/near/164008981" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> nikomatsakis <a href="https://rust-lang.github.io/zulip_archive/stream/187312-wg-async-foundations/topic/weekly.20meeting.202019.2E04.2E23.html#164008981">(Apr 23 2019 at 17:09)</a>:</h4>
<p>I actually have .. a bit more time this week, and I might be able to devote some time to that</p>



<a name="164008986"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/187312-wg-async-foundations/topic/weekly%20meeting%202019.04.23/near/164008986" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> nikomatsakis <a href="https://rust-lang.github.io/zulip_archive/stream/187312-wg-async-foundations/topic/weekly.20meeting.202019.2E04.2E23.html#164008986">(Apr 23 2019 at 17:09)</a>:</h4>
<p>I wouldn't mind playing around with it if I can carve out the time</p>



<a name="164009055"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/187312-wg-async-foundations/topic/weekly%20meeting%202019.04.23/near/164009055" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> Taylor Cramer <a href="https://rust-lang.github.io/zulip_archive/stream/187312-wg-async-foundations/topic/weekly.20meeting.202019.2E04.2E23.html#164009055">(Apr 23 2019 at 17:10)</a>:</h4>
<p>okay-- let me know if you're feeling pressed for time still, because I have time to look this week</p>



<a name="164009075"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/187312-wg-async-foundations/topic/weekly%20meeting%202019.04.23/near/164009075" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> Taylor Cramer <a href="https://rust-lang.github.io/zulip_archive/stream/187312-wg-async-foundations/topic/weekly.20meeting.202019.2E04.2E23.html#164009075">(Apr 23 2019 at 17:10)</a>:</h4>
<p>both <a href="https://github.com/rust-lang/rust/issues/59313" target="_blank" title="https://github.com/rust-lang/rust/issues/59313">https://github.com/rust-lang/rust/issues/59313</a> and <a href="https://github.com/rust-lang/rust/issues/59972" target="_blank" title="https://github.com/rust-lang/rust/issues/59972">https://github.com/rust-lang/rust/issues/59972</a> have PRs out to fix</p>



<a name="164009091"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/187312-wg-async-foundations/topic/weekly%20meeting%202019.04.23/near/164009091" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> Taylor Cramer <a href="https://rust-lang.github.io/zulip_archive/stream/187312-wg-async-foundations/topic/weekly.20meeting.202019.2E04.2E23.html#164009091">(Apr 23 2019 at 17:10)</a>:</h4>
<p>as does <a href="https://github.com/rust-lang/rust/issues/58930" target="_blank" title="https://github.com/rust-lang/rust/issues/58930">https://github.com/rust-lang/rust/issues/58930</a></p>



<a name="164009119"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/187312-wg-async-foundations/topic/weekly%20meeting%202019.04.23/near/164009119" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> Taylor Cramer <a href="https://rust-lang.github.io/zulip_archive/stream/187312-wg-async-foundations/topic/weekly.20meeting.202019.2E04.2E23.html#164009119">(Apr 23 2019 at 17:11)</a>:</h4>
<p>and <a href="https://github.com/rust-lang/rust/issues/54716" target="_blank" title="https://github.com/rust-lang/rust/issues/54716">https://github.com/rust-lang/rust/issues/54716</a></p>



<a name="164009134"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/187312-wg-async-foundations/topic/weekly%20meeting%202019.04.23/near/164009134" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> nikomatsakis <a href="https://rust-lang.github.io/zulip_archive/stream/187312-wg-async-foundations/topic/weekly.20meeting.202019.2E04.2E23.html#164009134">(Apr 23 2019 at 17:11)</a>:</h4>
<blockquote>
<p>and <a href="https://github.com/rust-lang/rust/issues/54716" target="_blank" title="https://github.com/rust-lang/rust/issues/54716">https://github.com/rust-lang/rust/issues/54716</a></p>
</blockquote>
<p>looks like <span class="user-mention" data-user-id="120134">@Giles Cope</span> did the work I asked for, or at least rebased :)</p>



<a name="164009140"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/187312-wg-async-foundations/topic/weekly%20meeting%202019.04.23/near/164009140" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> Taylor Cramer <a href="https://rust-lang.github.io/zulip_archive/stream/187312-wg-async-foundations/topic/weekly.20meeting.202019.2E04.2E23.html#164009140">(Apr 23 2019 at 17:11)</a>:</h4>
<p>so that just leaves multiple lifetimes and unbounded recursion</p>



<a name="164009148"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/187312-wg-async-foundations/topic/weekly%20meeting%202019.04.23/near/164009148" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> nikomatsakis <a href="https://rust-lang.github.io/zulip_archive/stream/187312-wg-async-foundations/topic/weekly.20meeting.202019.2E04.2E23.html#164009148">(Apr 23 2019 at 17:11)</a>:</h4>
<p>I've been very slow in reviewing lately :(</p>



<a name="164009152"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/187312-wg-async-foundations/topic/weekly%20meeting%202019.04.23/near/164009152" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> nikomatsakis <a href="https://rust-lang.github.io/zulip_archive/stream/187312-wg-async-foundations/topic/weekly.20meeting.202019.2E04.2E23.html#164009152">(Apr 23 2019 at 17:11)</a>:</h4>
<p>but I can look at that now-ish</p>



<a name="164009160"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/187312-wg-async-foundations/topic/weekly%20meeting%202019.04.23/near/164009160" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> nikomatsakis <a href="https://rust-lang.github.io/zulip_archive/stream/187312-wg-async-foundations/topic/weekly.20meeting.202019.2E04.2E23.html#164009160">(Apr 23 2019 at 17:11)</a>:</h4>
<p>(ps <span class="user-mention" data-user-id="120134">@Giles Cope</span> please feel free to mercilessly ping me)</p>



<a name="164009224"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/187312-wg-async-foundations/topic/weekly%20meeting%202019.04.23/near/164009224" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> davidtwco <a href="https://rust-lang.github.io/zulip_archive/stream/187312-wg-async-foundations/topic/weekly.20meeting.202019.2E04.2E23.html#164009224">(Apr 23 2019 at 17:12)</a>:</h4>
<p>After addressing <span class="user-mention" data-user-id="127859">@Taylor Cramer</span>'s feedback on the drop order PR, I can take on another task.</p>



<a name="164009244"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/187312-wg-async-foundations/topic/weekly%20meeting%202019.04.23/near/164009244" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> Giles Cope <a href="https://rust-lang.github.io/zulip_archive/stream/187312-wg-async-foundations/topic/weekly.20meeting.202019.2E04.2E23.html#164009244">(Apr 23 2019 at 17:12)</a>:</h4>
<p>thanks  just need to figure out how to tell rust that the doc code snipit is 2018 rust...</p>



<a name="164009245"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/187312-wg-async-foundations/topic/weekly%20meeting%202019.04.23/near/164009245" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> Taylor Cramer <a href="https://rust-lang.github.io/zulip_archive/stream/187312-wg-async-foundations/topic/weekly.20meeting.202019.2E04.2E23.html#164009245">(Apr 23 2019 at 17:12)</a>:</h4>
<p>one of us should probably investigate the unbounded recursion issue, then: <a href="https://github.com/rust-lang/rust/issues/53249" target="_blank" title="https://github.com/rust-lang/rust/issues/53249">https://github.com/rust-lang/rust/issues/53249</a></p>



<a name="164009253"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/187312-wg-async-foundations/topic/weekly%20meeting%202019.04.23/near/164009253" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> Taylor Cramer <a href="https://rust-lang.github.io/zulip_archive/stream/187312-wg-async-foundations/topic/weekly.20meeting.202019.2E04.2E23.html#164009253">(Apr 23 2019 at 17:12)</a>:</h4>
<p>want to take that one <span class="user-mention" data-user-id="116107">@davidtwco</span> ?</p>



<a name="164009261"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/187312-wg-async-foundations/topic/weekly%20meeting%202019.04.23/near/164009261" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> davidtwco <a href="https://rust-lang.github.io/zulip_archive/stream/187312-wg-async-foundations/topic/weekly.20meeting.202019.2E04.2E23.html#164009261">(Apr 23 2019 at 17:13)</a>:</h4>
<p>Sure thing.</p>



<a name="164009308"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/187312-wg-async-foundations/topic/weekly%20meeting%202019.04.23/near/164009308" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> Taylor Cramer <a href="https://rust-lang.github.io/zulip_archive/stream/187312-wg-async-foundations/topic/weekly.20meeting.202019.2E04.2E23.html#164009308">(Apr 23 2019 at 17:13)</a>:</h4>
<p>oh so we sort of moved on without settling <a href="https://github.com/rust-lang/rust/issues/60203" target="_blank" title="https://github.com/rust-lang/rust/issues/60203">https://github.com/rust-lang/rust/issues/60203</a> <span class="user-mention" data-user-id="116009">@nikomatsakis</span></p>



<a name="164009321"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/187312-wg-async-foundations/topic/weekly%20meeting%202019.04.23/near/164009321" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> Taylor Cramer <a href="https://rust-lang.github.io/zulip_archive/stream/187312-wg-async-foundations/topic/weekly.20meeting.202019.2E04.2E23.html#164009321">(Apr 23 2019 at 17:13)</a>:</h4>
<p>I'd be happy to go in and investigate that</p>



<a name="164009374"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/187312-wg-async-foundations/topic/weekly%20meeting%202019.04.23/near/164009374" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> Taylor Cramer <a href="https://rust-lang.github.io/zulip_archive/stream/187312-wg-async-foundations/topic/weekly.20meeting.202019.2E04.2E23.html#164009374">(Apr 23 2019 at 17:14)</a>:</h4>
<p>but you'd prefer not to add support for impl headers as well? at the moment it's shared code</p>



<a name="164009427"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/187312-wg-async-foundations/topic/weekly%20meeting%202019.04.23/near/164009427" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> nikomatsakis <a href="https://rust-lang.github.io/zulip_archive/stream/187312-wg-async-foundations/topic/weekly.20meeting.202019.2E04.2E23.html#164009427">(Apr 23 2019 at 17:14)</a>:</h4>
<blockquote>
<p>thanks  just need to figure out how to tell rust that the doc code snipit is 2018 rust...</p>
</blockquote>
<p>hmm =) maybe <span class="user-mention" data-user-id="210316">@Guillaume</span> or <span class="user-mention" data-user-id="133692">@QuietMisdreavus</span> knows</p>



<a name="164009472"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/187312-wg-async-foundations/topic/weekly%20meeting%202019.04.23/near/164009472" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> nikomatsakis <a href="https://rust-lang.github.io/zulip_archive/stream/187312-wg-async-foundations/topic/weekly.20meeting.202019.2E04.2E23.html#164009472">(Apr 23 2019 at 17:15)</a>:</h4>
<blockquote>
<p>but you'd prefer not to add support for impl headers as well? at the moment it's shared code</p>
</blockquote>
<p>say more <span class="user-mention" data-user-id="127859">@Taylor Cramer</span> ?</p>



<a name="164009516"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/187312-wg-async-foundations/topic/weekly%20meeting%202019.04.23/near/164009516" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> nikomatsakis <a href="https://rust-lang.github.io/zulip_archive/stream/187312-wg-async-foundations/topic/weekly.20meeting.202019.2E04.2E23.html#164009516">(Apr 23 2019 at 17:15)</a>:</h4>
<p>Oh, i.e., the way that -- in an impl header -- it is presently a hard error to elide the <code>'_</code></p>



<a name="164009576"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/187312-wg-async-foundations/topic/weekly%20meeting%202019.04.23/near/164009576" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> nikomatsakis <a href="https://rust-lang.github.io/zulip_archive/stream/187312-wg-async-foundations/topic/weekly.20meeting.202019.2E04.2E23.html#164009576">(Apr 23 2019 at 17:16)</a>:</h4>
<p>Is that what you're referring to?</p>



<a name="164009589"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/187312-wg-async-foundations/topic/weekly%20meeting%202019.04.23/near/164009589" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> Taylor Cramer <a href="https://rust-lang.github.io/zulip_archive/stream/187312-wg-async-foundations/topic/weekly.20meeting.202019.2E04.2E23.html#164009589">(Apr 23 2019 at 17:16)</a>:</h4>
<p>Yes-- they both use <a href="https://github.com/rust-lang/rust/blob/master/src/librustc/hir/lowering.rs#L305" target="_blank" title="https://github.com/rust-lang/rust/blob/master/src/librustc/hir/lowering.rs#L305">https://github.com/rust-lang/rust/blob/master/src/librustc/hir/lowering.rs#L305</a></p>



<a name="164009592"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/187312-wg-async-foundations/topic/weekly%20meeting%202019.04.23/near/164009592" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> nikomatsakis <a href="https://rust-lang.github.io/zulip_archive/stream/187312-wg-async-foundations/topic/weekly.20meeting.202019.2E04.2E23.html#164009592">(Apr 23 2019 at 17:16)</a>:</h4>
<p>I don't really have a strong opinion here. I'd be happy to make it a hard error to elide the <code>'_</code> in an async fn as well :)</p>



<a name="164009597"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/187312-wg-async-foundations/topic/weekly%20meeting%202019.04.23/near/164009597" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> nikomatsakis <a href="https://rust-lang.github.io/zulip_archive/stream/187312-wg-async-foundations/topic/weekly.20meeting.202019.2E04.2E23.html#164009597">(Apr 23 2019 at 17:16)</a>:</h4>
<p>but I'm also ok with it being permitted (but deprecated) in both</p>



<a name="164009618"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/187312-wg-async-foundations/topic/weekly%20meeting%202019.04.23/near/164009618" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> nikomatsakis <a href="https://rust-lang.github.io/zulip_archive/stream/187312-wg-async-foundations/topic/weekly.20meeting.202019.2E04.2E23.html#164009618">(Apr 23 2019 at 17:16)</a>:</h4>
<p>(i.e., that I guess makes it more uniform across the whole lang)</p>



<a name="164009672"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/187312-wg-async-foundations/topic/weekly%20meeting%202019.04.23/near/164009672" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> Taylor Cramer <a href="https://rust-lang.github.io/zulip_archive/stream/187312-wg-async-foundations/topic/weekly.20meeting.202019.2E04.2E23.html#164009672">(Apr 23 2019 at 17:17)</a>:</h4>
<p>today it looks like we create a parameter specifically when we lower a lifetime with the name <code>'_</code></p>



<a name="164009674"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/187312-wg-async-foundations/topic/weekly%20meeting%202019.04.23/near/164009674" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> Taylor Cramer <a href="https://rust-lang.github.io/zulip_archive/stream/187312-wg-async-foundations/topic/weekly.20meeting.202019.2E04.2E23.html#164009674">(Apr 23 2019 at 17:17)</a>:</h4>
<p><a href="https://github.com/rust-lang/rust/blob/master/src/librustc/hir/lowering.rs#L2549" target="_blank" title="https://github.com/rust-lang/rust/blob/master/src/librustc/hir/lowering.rs#L2549">https://github.com/rust-lang/rust/blob/master/src/librustc/hir/lowering.rs#L2549</a></p>



<a name="164009689"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/187312-wg-async-foundations/topic/weekly%20meeting%202019.04.23/near/164009689" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> Taylor Cramer <a href="https://rust-lang.github.io/zulip_archive/stream/187312-wg-async-foundations/topic/weekly.20meeting.202019.2E04.2E23.html#164009689">(Apr 23 2019 at 17:17)</a>:</h4>
<p>so that would have to change up a bit if we wanted to support this</p>



<a name="164009695"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/187312-wg-async-foundations/topic/weekly%20meeting%202019.04.23/near/164009695" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> Taylor Cramer <a href="https://rust-lang.github.io/zulip_archive/stream/187312-wg-async-foundations/topic/weekly.20meeting.202019.2E04.2E23.html#164009695">(Apr 23 2019 at 17:17)</a>:</h4>
<p>I don't have a really strong opinion either way</p>



<a name="164009746"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/187312-wg-async-foundations/topic/weekly%20meeting%202019.04.23/near/164009746" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> Taylor Cramer <a href="https://rust-lang.github.io/zulip_archive/stream/187312-wg-async-foundations/topic/weekly.20meeting.202019.2E04.2E23.html#164009746">(Apr 23 2019 at 17:18)</a>:</h4>
<p>but it would be nice for the two to match purely from an implementation standpoint</p>



<a name="164009752"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/187312-wg-async-foundations/topic/weekly%20meeting%202019.04.23/near/164009752" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> nikomatsakis <a href="https://rust-lang.github.io/zulip_archive/stream/187312-wg-async-foundations/topic/weekly.20meeting.202019.2E04.2E23.html#164009752">(Apr 23 2019 at 17:18)</a>:</h4>
<blockquote>
<p>but it would be nice for the two to match purely from an implementation standpoint</p>
</blockquote>
<p>I agree with this</p>



<a name="164009769"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/187312-wg-async-foundations/topic/weekly%20meeting%202019.04.23/near/164009769" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> nikomatsakis <a href="https://rust-lang.github.io/zulip_archive/stream/187312-wg-async-foundations/topic/weekly.20meeting.202019.2E04.2E23.html#164009769">(Apr 23 2019 at 17:18)</a>:</h4>
<blockquote>
<p>so that would have to change up a bit if we wanted to support this</p>
</blockquote>
<p>yeah, I think that might have been a partial motivator for why I made it a hard error</p>



<a name="164009778"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/187312-wg-async-foundations/topic/weekly%20meeting%202019.04.23/near/164009778" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> nikomatsakis <a href="https://rust-lang.github.io/zulip_archive/stream/187312-wg-async-foundations/topic/weekly.20meeting.202019.2E04.2E23.html#164009778">(Apr 23 2019 at 17:18)</a>:</h4>
<p>I feel like making it a hard error seems ok -- I'm a bit confused why, if they are shared code, it is not already?</p>



<a name="164009783"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/187312-wg-async-foundations/topic/weekly%20meeting%202019.04.23/near/164009783" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> nikomatsakis <a href="https://rust-lang.github.io/zulip_archive/stream/187312-wg-async-foundations/topic/weekly.20meeting.202019.2E04.2E23.html#164009783">(Apr 23 2019 at 17:18)</a>:</h4>
<p>I guess because it's not setting the right flag</p>



<a name="164009821"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/187312-wg-async-foundations/topic/weekly%20meeting%202019.04.23/near/164009821" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> QuietMisdreavus <a href="https://rust-lang.github.io/zulip_archive/stream/187312-wg-async-foundations/topic/weekly.20meeting.202019.2E04.2E23.html#164009821">(Apr 23 2019 at 17:19)</a>:</h4>
<p>tag doctests with <code>edition2018</code> to force them to build as 2018</p>



<a name="164009828"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/187312-wg-async-foundations/topic/weekly%20meeting%202019.04.23/near/164009828" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> nikomatsakis <a href="https://rust-lang.github.io/zulip_archive/stream/187312-wg-async-foundations/topic/weekly.20meeting.202019.2E04.2E23.html#164009828">(Apr 23 2019 at 17:19)</a>:</h4>
<p><span class="user-mention" data-user-id="120134">@Giles Cope</span> <span aria-label="point up" class="emoji emoji-1f446" role="img" title="point up">:point_up:</span></p>



<a name="164009848"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/187312-wg-async-foundations/topic/weekly%20meeting%202019.04.23/near/164009848" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> QuietMisdreavus <a href="https://rust-lang.github.io/zulip_archive/stream/187312-wg-async-foundations/topic/weekly.20meeting.202019.2E04.2E23.html#164009848">(Apr 23 2019 at 17:19)</a>:</h4>
<p>though there may be issues with certain edition things, there’s an open PR to fix it but it’s hit another issue</p>



<a name="164009852"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/187312-wg-async-foundations/topic/weekly%20meeting%202019.04.23/near/164009852" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> Taylor Cramer <a href="https://rust-lang.github.io/zulip_archive/stream/187312-wg-async-foundations/topic/weekly.20meeting.202019.2E04.2E23.html#164009852">(Apr 23 2019 at 17:20)</a>:</h4>
<p><span class="user-mention" data-user-id="116009">@nikomatsakis</span> okay, I'll make it a hard error for now, then, and we can always add support later if we decide to</p>



<a name="164009923"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/187312-wg-async-foundations/topic/weekly%20meeting%202019.04.23/near/164009923" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> nikomatsakis <a href="https://rust-lang.github.io/zulip_archive/stream/187312-wg-async-foundations/topic/weekly.20meeting.202019.2E04.2E23.html#164009923">(Apr 23 2019 at 17:20)</a>:</h4>
<blockquote>
<p>I feel like making it a hard error seems ok -- I'm a bit confused why, if they are shared code, it is not already?</p>
</blockquote>
<p>ps I guess this is one of those "small decisions" that comes up during impl where it'd be nice to have a clearer place to surface it</p>



<a name="164009925"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/187312-wg-async-foundations/topic/weekly%20meeting%202019.04.23/near/164009925" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> Giles Cope <a href="https://rust-lang.github.io/zulip_archive/stream/187312-wg-async-foundations/topic/weekly.20meeting.202019.2E04.2E23.html#164009925">(Apr 23 2019 at 17:20)</a>:</h4>
<p>ok will give that a try. didn't see many examples</p>



<a name="164010010"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/187312-wg-async-foundations/topic/weekly%20meeting%202019.04.23/near/164010010" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> nikomatsakis <a href="https://rust-lang.github.io/zulip_archive/stream/187312-wg-async-foundations/topic/weekly.20meeting.202019.2E04.2E23.html#164010010">(Apr 23 2019 at 17:21)</a>:</h4>
<p><span class="user-mention" data-user-id="127859">@Taylor Cramer</span> you looked for new issues already, right? (hence the one we're discussing now)</p>



<a name="164010013"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/187312-wg-async-foundations/topic/weekly%20meeting%202019.04.23/near/164010013" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> nikomatsakis <a href="https://rust-lang.github.io/zulip_archive/stream/187312-wg-async-foundations/topic/weekly.20meeting.202019.2E04.2E23.html#164010013">(Apr 23 2019 at 17:21)</a>:</h4>
<p>Is there anything left at this point?</p>



<a name="164010019"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/187312-wg-async-foundations/topic/weekly%20meeting%202019.04.23/near/164010019" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> nikomatsakis <a href="https://rust-lang.github.io/zulip_archive/stream/187312-wg-async-foundations/topic/weekly.20meeting.202019.2E04.2E23.html#164010019">(Apr 23 2019 at 17:21)</a>:</h4>
<p>(i.e., for this meeting)</p>



<a name="164010024"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/187312-wg-async-foundations/topic/weekly%20meeting%202019.04.23/near/164010024" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> Taylor Cramer <a href="https://rust-lang.github.io/zulip_archive/stream/187312-wg-async-foundations/topic/weekly.20meeting.202019.2E04.2E23.html#164010024">(Apr 23 2019 at 17:21)</a>:</h4>
<p>I did-- I didn't see any other untriaged ones</p>



<a name="164010181"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/187312-wg-async-foundations/topic/weekly%20meeting%202019.04.23/near/164010181" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> nikomatsakis <a href="https://rust-lang.github.io/zulip_archive/stream/187312-wg-async-foundations/topic/weekly.20meeting.202019.2E04.2E23.html#164010181">(Apr 23 2019 at 17:23)</a>:</h4>
<p><span class="user-mention" data-user-id="116107">@davidtwco</span> do you feel you need another task <em>this week</em> =)</p>



<a name="164010210"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/187312-wg-async-foundations/topic/weekly%20meeting%202019.04.23/near/164010210" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> nikomatsakis <a href="https://rust-lang.github.io/zulip_archive/stream/187312-wg-async-foundations/topic/weekly.20meeting.202019.2E04.2E23.html#164010210">(Apr 23 2019 at 17:23)</a>:</h4>
<blockquote>
<p>okay-- let me know if you're feeling pressed for time still, because I have time to look this week</p>
</blockquote>
<p>ps <span class="user-mention" data-user-id="127859">@Taylor Cramer</span> I scheduled a big block of time tomorrow, but I'll update you then how it goes -- or earlier if I decide I have too much going on.</p>



<a name="164010256"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/187312-wg-async-foundations/topic/weekly%20meeting%202019.04.23/near/164010256" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> davidtwco <a href="https://rust-lang.github.io/zulip_archive/stream/187312-wg-async-foundations/topic/weekly.20meeting.202019.2E04.2E23.html#164010256">(Apr 23 2019 at 17:24)</a>:</h4>
<p><span aria-label="confounded" class="emoji emoji-1f616" role="img" title="confounded">:confounded:</span>  I don't get it..</p>



<a name="164010516"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/187312-wg-async-foundations/topic/weekly%20meeting%202019.04.23/near/164010516" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> centril <a href="https://rust-lang.github.io/zulip_archive/stream/187312-wg-async-foundations/topic/weekly.20meeting.202019.2E04.2E23.html#164010516">(Apr 23 2019 at 17:27)</a>:</h4>
<p><span class="user-mention" data-user-id="116009">@nikomatsakis</span> <span class="user-mention" data-user-id="127859">@Taylor Cramer</span>  nominated the <code>'_</code> issue for Thursday</p>



<a name="164010920"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/187312-wg-async-foundations/topic/weekly%20meeting%202019.04.23/near/164010920" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> Taylor Cramer <a href="https://rust-lang.github.io/zulip_archive/stream/187312-wg-async-foundations/topic/weekly.20meeting.202019.2E04.2E23.html#164010920">(Apr 23 2019 at 17:32)</a>:</h4>
<p>okay-- that's all I have for this week</p>



<a name="164012642"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/187312-wg-async-foundations/topic/weekly%20meeting%202019.04.23/near/164012642" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> GuillaumeGomez <a href="https://rust-lang.github.io/zulip_archive/stream/187312-wg-async-foundations/topic/weekly.20meeting.202019.2E04.2E23.html#164012642">(Apr 23 2019 at 17:51)</a>:</h4>
<blockquote>
<p>hmm =) maybe @Guillaume or @QuietMisdreavus knows</p>
</blockquote>
<p>I don't have the original message so I'll just assume you're talking about long error code explanation? If so, there is one I kinda enforced but not sure if still followed:</p>
<div class="codehilite"><pre><span></span>Description of the error.

[code example(s) showing a failing case]

Explanations of why it&#39;s failing and how to fix it.

[fixed code example(s)]
</pre></div>


<p>If I was wrong, please correct so I can answer. :)</p>



<a name="164012937"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/187312-wg-async-foundations/topic/weekly%20meeting%202019.04.23/near/164012937" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> QuietMisdreavus <a href="https://rust-lang.github.io/zulip_archive/stream/187312-wg-async-foundations/topic/weekly.20meeting.202019.2E04.2E23.html#164012937">(Apr 23 2019 at 17:54)</a>:</h4>
<p>it was about using a specific edition in a doctest</p>



<a name="164012953"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/187312-wg-async-foundations/topic/weekly%20meeting%202019.04.23/near/164012953" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> QuietMisdreavus <a href="https://rust-lang.github.io/zulip_archive/stream/187312-wg-async-foundations/topic/weekly.20meeting.202019.2E04.2E23.html#164012953">(Apr 23 2019 at 17:54)</a>:</h4>
<p>i answered earlier</p>



<hr><p>Last updated: Aug 07 2021 at 22:04 UTC</p>
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